Merge pull request #16065 from webpack/fix/issue-16054

support es2022

lib/javascript/JavascriptParser.js

@@ -1447,6 +1447,11 @@ class JavascriptParser extends Parser {
 							this.walkExpression(classElement.value);
 							this.scope.topLevelScope = wasTopLevel;
 						}
+					} else if (classElement.type === "StaticBlock") {
+						const wasTopLevel = this.scope.topLevelScope;
+						this.scope.topLevelScope = false;
+						this.walkBlockStatement(classElement);
+						this.scope.topLevelScope = wasTopLevel;
 					}
 				}
 			}
@@ -1903,7 +1908,7 @@ class JavascriptParser extends Parser {
 						!this.hooks.importSpecifier.call(
 							statement,
 							source,
-							specifier.imported.name,
+							specifier.imported.name || specifier.imported.value,
 							name
 						)
 					) {
@@ -1973,7 +1978,7 @@ class JavascriptParser extends Parser {
 				const specifier = statement.specifiers[specifierIndex];
 				switch (specifier.type) {
 					case "ExportSpecifier": {
-						const name = specifier.exported.name;
+						const name = specifier.exported.name || specifier.exported.value;
 						if (source) {
 							this.hooks.exportImportSpecifier.call(
 								statement,

package.json

@@ -10,7 +10,7 @@
     "@webassemblyjs/ast": "1.11.1",
     "@webassemblyjs/wasm-edit": "1.11.1",
     "@webassemblyjs/wasm-parser": "1.11.1",
-    "acorn": "^8.4.1",
+    "acorn": "^8.7.1",
     "acorn-import-assertions": "^1.7.6",
     "browserslist": "^4.14.5",
     "chrome-trace-event": "^1.0.2",

test/cases/parsing/es2022/counter.js

@@ -0,0 +1,4 @@
+let value = 0;
+const add = () => value++;
+
+export { value, add }

test/cases/parsing/es2022/es2022.js

@@ -0,0 +1,20 @@
+import { "\0 add" as add } from './reexport';
+
+export default class Foo {
+	static {
+		new Foo(add);
+	}
+
+	constructor(fn) {
+		this.#foo = fn;
+		this.#add();
+	}
+
+	#foo = undefined;
+
+	#add() {
+		if (#foo in this && this.#foo) {
+			this.#foo();
+		}
+	}
+}

test/cases/parsing/es2022/index.js

@@ -0,0 +1,7 @@
+import { value, add } from "./counter";
+import Foo from "./es2022";
+
+it("should compile and run", () => {
+	new Foo(add);
+	expect(value).toBe(2);
+});

test/cases/parsing/es2022/reexport.js

@@ -0,0 +1 @@
+export { add as "\0 add" } from "./counter";

test/cases/parsing/es2022/test.filter.js

@@ -0,0 +1,11 @@
+module.exports = function(config) {
+	// terser doesn't support static {}
+	if (config.mode === "production") return false;
+
+	try {
+		eval("class A { static {} }");
+		return true;
+	} catch {
+		return false;
+	}
+};

yarn.lock

@@ -1230,10 +1230,10 @@ acorn@^7.1.1, acorn@^7.4.0:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-7.4.1.tgz#feaed255973d2e77555b83dbc08851a6c63520fa"
   integrity sha512-nQyp0o1/mNdbTO1PO6kHkwSrmgZ0MT/jCCpNiwbUjGoRN4dlBhqJtoQuCnEOKzgTVwg0ZWiCoQy6SxMebQVh8A==
 
-acorn@^8.2.4, acorn@^8.4.1:
-  version "8.7.0"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.7.0.tgz#90951fde0f8f09df93549481e5fc141445b791cf"
-  integrity sha512-V/LGr1APy+PXIwKebEWrkZPwoeoF+w1jiOBUmuxuiUIaOHtob8Qc9BTrYo7VuI5fR8tqsy+buA2WFooR5olqvQ==
+acorn@^8.2.4, acorn@^8.7.1:
+  version "8.7.1"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.7.1.tgz#0197122c843d1bf6d0a5e83220a788f278f63c30"
+  integrity sha512-Xx54uLJQZ19lKygFXOWsscKUbsBZW0CPykPhVQdhIeIwrbPmJzqeASDInc8nKBnp/JT6igTs82qPXz069H8I/A==
 
 agent-base@6:
   version "6.0.2"